---
title: reactiveMaskContentOffsetX
framework: metalfx
role: symbol
role_heading: Instance Property
path: metalfx/mtlfxtemporalscalerbase/reactivemaskcontentoffsetx
---

# reactiveMaskContentOffsetX

The horizontal offset, in pixels, of the region within the reactive mask texture to use as input.

## Declaration

```swift
var reactiveMaskContentOffsetX: Int { get set }
```